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SUMI-GT21 Toyota & Lexus GPS antenna conversion cable for Alpine Halo

Only 2 left. May require assembly*)
  • $19.98
Market price: $24.95, you save $4.97
Don't cut or splice! Use Toyota/Lexus antenna already fitted with Alpine Halo radios.
Restrictions apply. Please read entire description, assembly times, warnings prior to ordering.
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  • Net weight
    0.11 lbs
  • Part Number
Don't cut factory antenna plug! Use factory antenna already fitted with select Alpine Halo receivers.

Did you know the factory GPS antenna already fitted to recent (2014+) Toyota & Lexus can be used with many Alpine Halo receivers? That's right! The SUMI-GT21 these vehicle owners do not have to cut/splice factory antenna wiring, install yet another antenna and best of all it facilitates re-installation of the factory radio if and when vehicle is offered up for sale or trade. The SUMI-GT21 is a small jumper cable (Approx. 5 inches) made of 50-ohm flexible RG174 coaxial cable that includes a male HFC-III connector (fits factory HFC-III plug (found in the compatible vehicle) and a GT21 female plug.
[These issues or circumstances may affect compatibility of our product with your radio or vehicle.]
1. Compatible with many 2014+ Toyota & Lexus with "rounded" (natural color) antenna plug.
2. Older Toyota, Lexus, Mazda & Subaru with "square" HFC plug, requires our HFC-GT21 instead.
3. Compatible with Alpine: iLX-F115D, iLX-507, iLX-705D/M, iLX-F509, iLX-F511, i509-WRA-JL, iLX-F905D etc.
4. Alpine Halo radios sold in Europe & Africa (e.g. ILX-F903D, INE-F904D, INE-F904DC, ILX-702D etc.) requires our SUMI-GT5 instead.
1. Locate factory GPS antenna plug behind the dash.
2. Connect factor "rounded" GPS plug to adapter socket
3. Connect gray plug to the GPS socket on compatible Halo radio.
OPTIONAL: To use factory Toyota XM antenna with a Sirius Connect add-on tuner (SVX300 etc.); purchase our SUMI-SMB adapter cable.

1. Converts factory GPS HFC-III (See picture insert) to fit Alpine Halo.
2. The SUMI-GT21 hand made cable is NOT RETURNABLE unless defective for exchange (same part)
3. This custom cable does not ship same day. It must first be assembled (built by hand) after which it is then shipped using shipping method selected at checkout.

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, shipping rates are automated and calculated in real time and dependent on cart contents, weight and destination.
To determine applicable shipping for:
- 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, 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 working 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 product description page.
Paying for a faster delivery method (e.g. Express mail, Priority mail etc.) for products requiring "assembly" does NOT speed up assembly (built by hand) time; however, it does speed up delivery time after shipment.
Delivery time for in stock products requiring assembly= Assembly time (2-4 working days) + transit time (shipping method).

Por ejemplo: Order our very popular AUX-GM3x GM aux cable and select "USPS Priority Mail (2-4 days) nationwide; expect delivery between 5-7 business days after order placement.
Please contact us first regarding time sensitive deliveries.
Items not requiring assembly or customization (off-the-shelf), usually ship within 24-hours and includes this 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 ship time to most states is between 2-7 working 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.

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