I'm installing a Motorola HF850 bluetooth car kit into a car that doesn't have the 'radio mute' functionality. I've heard of people installing a relay to stop the power going to the radio (turning it off) when a call comes in.

Anyone know where I can get this relay or if you know what type of relay it is, that would help too!

Thanks so much.

 

check out the relays at radioshack.com -

 

No... get a relay from any car stereo shop.

It's a VF4 form factor 30A relay.

 

Thanks guys, I'll check it out.