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BT7-MB Bluetooth, USB thumb drive input for select 1999-Up Mercedes ISO radios

Coming soon

Back in stock: Jun 25, 2025

Add Bluetooth hands-free and streaming to Mercedes.
Restrictions apply. Please read entire description, warnings and alerts prior to ordering

Select from compatible radios

Return Policy

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Shipping Policy

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Payment Methods

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Add Bluetooth Hands-free, music streaming, Flash drive playback on older Mercedes ISO radios.
Using a phone in any way while driving can be dangerous and if your older Mercedes still runs great, but lack support for more attractive modern media formats such as Bluetooth, and you are well beyond CD's, cassettes or listening to the same old commercials on the radio; the BT7-MB is for you! This affordable Bluetooth & media module is for Mercedes vehicle owners seeking to stream Pandora, Spotify, Tune in etc., make/receive calls safely using Bluetooth® mobile phones and USB media player without investing in a new radio. Hands-free Profile (HFP): is not only less distracting than trying to juggle a phone while steering but it’s also the only legal way to do it in many states. Streaming audio (A2DP): allows users to play internet music, listen to turn-by-turn directions and more. Wireless remote Control tracks, adjust device volume, answer/end calls etc. Flash media player: Allows playback of MP3, WMA, Flac format from a USB stick or SD/SDHC card in CD quality. After initial pairing and upon entering vehicle, your Smart device will automatically and wirelessly connect to module hidden behind dash. This clean solution leaves no wires or clutter on or around the dash and is the accessory you want if looking for wireless connectivity without investing in a new stereo.
» Bluetooth 4.2 A2DP profile for Hands-Free (HPF) and streaming (A2DP)
» Support for USB2.0 and 3.0.sticks up to 32GB (8GB recommended).
» Supports USB2.0/3.0 with the following audio files: MP2, MP3 (up to 320Kbit/s bit rate), WMA, FLAC (8, 16, 24 bit), ACC / MP4 / M4A, WAV, AIF, AIFC
» Last position memory microcontroller allows MP3/VWA files to resume playback from last position.
» MP3/WMA playback sequence according to saved order.
» Auto pair/un-pair upon entering /exiting vehicle.
» Stream from Pandora, Deezer, Spotify, Tune-in and more.
» Radio mutes upon initiating or receiving calls.
» Adaptive electric condenser cartridge with high sensitivity , low impedance, anti-noise microphone
» Supports unlimited number of files (tracks)
» Wireless remote control
[Please read all requirements and warnings below prior to purchasing this part]
1. Works on 1999-05 Becker, Alpine ISO radios.
2. Also compatible with Chrysler Crossfire radios
3. Connects to the 8-pin power/speaker sockets on radio.
4. Works in Bose and non-Bose systems
» Main module (4"x 2"x 0.73") x1
» Visor microphone with visor clip on 10 ft. cable
» Wireless remote control
» Remote control battery (CR2025) x1
» Custom 16-pin ISO harness

Avoid costly returns. Click to review your INSTALL GUIDE and FAQ prior to ordering.

Footnotes:[ See drop-down for reference]
* Compatible Becker/Alpine radios listed in compatibility notes #1 above

1. 1999 -Up radios are supported.
2. This modules does not ship same day. It must first be assembled after which it is then shipped using shipping method selected at checkout.

Printed instructions not included in shipment but available here in digital form:
View, print, download Installation instructions

Defective returns:
Our returns policy differs from than of other online merchants so we encourage everyone to read the returns policy page it in its entirety prior to ordering.
Defective returns eligible for warranty repair or replacement service:
Within the first 10 days, Discount Car Stereo will replace any defective or damaged part and provide a pre-paid return label (US Customers only). (Pre-paid labels are not issued for other reasons).
After 10 days of receipt, customer covers return shipping cost, however we cover shipping cost to supplier/manufacturer, and also the cost to ship back to you. If original purchase can't be replaced (discontinued etc.), we reserve the right to provide a substitute part of higher or equal value. Any claims for missing parts must be made within 7 days of delivery.
We strive to avoid costly returns by providing as much product description, exceptions, requirements, pictures and application possible. Click to read the full return policy page.

Gone are the days when customer needed to call or email to obtain shipping rates. At Discount Car Stereo.com, shipping rates are automated and calculated in real time and dependent on cart contents, weight and destination.
To determine applicable shipping for items in cart:
- Proceed to checkout.
- If already signed in; select address from address book or if new or wish to remain anonymous; enter shipping address.
- Select from available shipping methods
Online shipping calculator provides real time rates and shipping methods.
We ship throughout the USA, Puerto Rico, US Virgin Islands, Canada and select international destinations (Click country drop-down in checkout page for current listing or visit our Frequently asked questions page).
We are a family owned and operated specialty car stereo and accessory store and as such every effort is made to get your order processed and shipped at soon as possible; but because 95% of our offerings are made to order (not sitting on shelf collecting dust). Additional time (usually 2-4 business days) is required after which time orders are shipped using shipping method selected at checkout. Products requiring assembly includes this graphic in addition to warning messages at the bottom of the product description page.
Selecting (paying) for a faster delivery method (e.g. Express mail, Priority mail etc.) for products requiring "assembly" does NOT speed up assembly (build) time; however, it does speed up delivery time after shipment.
Delivery time for in stock products requiring assembly= Assembly time (2-4 business days) + transit time (shipping method).
Por ejemplo: Order our very popular HON-AUX, select "USPS Priority Mail (2-4 days) nationwide; expect delivery between 5-7 business days after order placement.
Please contact us first (before order placement) regarding time sensitive deliveries.
Items not requiring assembly or customization (off-the-shelf), usually ship within 24-hours (exclude weekends and postal holidays) and are identified by this 24 hour graphic.
Tracking information is emailed upon labeling. Customers accounts are also updated at the same time. All customers (with or without accounts) are able to check order status online which displays the same details available to our staff.
Except for Priority Mail Express® (Overnight Delivery*), USPS delivery times for Priority Mail® and USPS Ground Advantage™ are estimates and are not guaranteed; however delivery time to most states is between 2-7 business days.
International orders require additional paperwork and processing time (6-10 days) prior to shipping and due to many factors (custom inspections, carrier changeovers etc. ) we care not able to determine delivery times .
Free shipping (when available); applies to US only

*with a money-back guarantee

USA/Canada: Pay with Visa, MasterCard, American Express, Discover, PayPal: PayPal, PayPal Credit, Gift cards that display Visa, MasterCard, American Express and Discover logos are also accepted.
Customer billing information (first name, last name, billing address, and credit card information) must be entered exactly as it appears on credit card statement otherwise transaction will decline. Once order is placed a pending authorization (not a charge) will appear on your account and removed within 7-10 business days or after being charged and order shipped.
International: Select PayPal to pay with card. International credit cards are NOT accepted unless registered through PayPal. Click here to learn more about PayPal.
All prices are in U.S. dollars. The actual price charged to International customers is subject to the exchange rate applied by PayPal.
Important notice regarding shipping to alternate (non-billing) addresses: Shipping to non-billing address is no longer allowed, unless proof of card ownership is provided. Any and all customers shipping to non-billing address will be contacted by email to provide additional proof.