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Old 03-06-2012, 11:38 AM   #72
RedTitan20
Scooby Newbie
 
Member#: 310000
Join Date: Feb 2012
Chapter/Region: MWSOC
Vehicle:
2008 Impreza
DGM

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Quote:
Originally Posted by SVXdc View Post
If you buy a relay at Radio Shack for a DIY, look for the smallest one you can find with a 12 Volt coil. It only needs 2 switch contacts (closed when relay engaged).

The one on eBay is a huge 30 Amp automotive relay. Complete overkill for this application (and could even cause problems if you add a speaker amp -- the amp remote turn-on lead on some HUs may not be able to drive one of those huge relays plus multiple amps).

I recommend the smaller solid-state bypass units that you'll also see on eBay. They're only a couple $ more. Picture from not too long ago:
I already ordered the other relay from eBay, but this one doesn't look too bad. I don't plan on installing a amp in the car, but if I do, I may go this route in the future. Thanks for letting me know though. I do not know much about relays, so went with one that someone else recommended first and will give that a shot once it comes in.
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