986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - aftermarket radio it protect when connecting subwoofer

wawa · 01-17-2014, 06:56 PM

I install a Kenwood kmm-100u radio. When connecting front and rear speaker directly to radio harness, it work great. But as soon I try to connect the door subwoofer to the RCA subwoofer plug, radio goes to protect mode.

testing ohms I get around 4 for each side
testing resistance, I got about nothing (.01)

What can put the radio to protect mode as soon as I connect the subwoofer?

thanks
Chris

01-17-2014, 06:56 PM	#1
wawa Registered User Join Date: Apr 2011 Location: Quebec Posts: 202	aftermarket radio it protect when connecting subwoofer I install a Kenwood kmm-100u radio. When connecting front and rear speaker directly to radio harness, it work great. But as soon I try to connect the door subwoofer to the RCA subwoofer plug, radio goes to protect mode. testing ohms I get around 4 for each side testing resistance, I got about nothing (.01) What can put the radio to protect mode as soon as I connect the subwoofer? thanks Chris