40-HD11 - TV antenna Metra - Free user manual and instructions

Product Type	Antenna Adapter
Brand	Metra
Model	40-HD11
Compatible Vehicles	Various with standard antenna connector
Compatible Radios	Aftermarket receivers with power antenna wire
Wire Connection	Blue wire to receiver power antenna output
Connector Type	Standard Motorola antenna plug
Material	Plastic housing, metal contacts
Dimensions (approx.)	4.0 x 1.5 x 0.8 inches (10.2 x 3.8 x 2.0 cm)
Weight	0.8 oz (23 g)
Power Supply	Passive (signal only, no external power required)
Installation	Plug and play, no cutting or splicing required
Color	Black and gray
Operating Temperature	-40°F to 185°F (-40°C to 85°C)
Shielding	Fully shielded to reduce interference
Included Accessories	Antenna adapter, installation guide
Warranty	1 year limited
Safety	RoHS compliant, no hazardous substances
Maintenance	Keep dry; clean with soft cloth
Spare Parts	Not available separately; replace entire unit

Frequently Asked Questions - 40-HD11 Metra

What is the Metra 40-HD11 used for?

The Metra 40-HD11 is an antenna adapter that allows you to connect a standard car antenna to an aftermarket radio with a power antenna wire.

How do I install the 40-HD11?

Simply plug the adapter into your radio's antenna port. Then connect the blue wire to the power antenna output wire (usually blue or blue/white) on your new receiver.

Is the 40-HD11 compatible with all vehicles?

It works with most vehicles that have a standard Motorola antenna connector. Some European or specialty vehicles may require a different adapter.

Do I need to cut any wires?

No, installation is plug-and-play. No cutting or splicing is necessary.

Does the adapter require power?

No, it is a passive device. The blue wire is for signal control, not power.

What if my radio doesn't have a power antenna wire?

You can leave the blue wire unconnected; the adapter will still work but the antenna may not retract automatically.

Will this adapter improve my radio reception?

It simply passes the signal from your antenna; it does not amplify or improve signal quality.

Can I use this for a home antenna?

No, it is designed specifically for automotive antenna connections and may not fit home equipment.

How do I clean the adapter?

Use a soft, dry cloth to clean the plastic housing. Avoid liquids or chemicals.

Where can I find further help?

Contact Metra support at 1-888-955-6000 or visit Crutchfield.com for installation tips.

USER MANUAL 40-HD11 Metra

Before starting, compare items on your invoice with items received. Thoroughly check packing materials. If an item is missing, please call:

Crutchfield at 1-888-955-6000

120 40HD11I

Revision 05/03/12

The Blue wire must be connected to the power antenna wire of the new receiver. The receiver power antenna wire will typically be Blue or Blue/White.

Close-up of a black and gray electrical connector with a metallic terminal, no visible text or symbols

120 40HD11 Antenna Adaptor