There does not appear to be any light dimming or pulsing at all.

For checking the ground wires, where are the ones I should check out in the dash and engine compartment? And how do I go about checking them? looking for loose connection or doing some sort of multimeter test?

Hi Everybody, I'm new to the vibe life and to this forum. Was very glad to stumble upon you all as an amazing resource. Here's the deal: I have a 2005 with single CD player and subwoofer / sunroof. The factory head unit works fine under battery power, but when I turn the engine on, only the radio wo...