Got interference noise when turning on head lights

[azndeugene]

Hey guys,

So I just recently installed a 5 channel amp and pioneer headunit and got it all working but now when I turn on the headlights I get interference noise. Any ideas what causes this? Is it because I connected the illumination wire to the appropriate wire on the headunit wire harness?

Any ideas would be greatly appreciated!

[Rook12V]

Sounds like improper or insufficient grounding to me.

[dubdub]

Agreed. How is the amp grounded? Where is it grounded? Don't skimp on power and ground wire gauge and connectors.

[azndeugene]

Im running the Planet Audio AC1800.5 amplifier. Stereoinstaller1 aka Luke recently replied to a an earlier post by me saying I only need 4 gauge wire and used a wiring kit he suggested. I am grounded to the side wall in the trunk. Ill double check the ground and take some extra sand paper to the small region i scraped paint off to ensure its a clean metal ground.

[Rook12V]

Yeah, listen to Luke. 4 GA is just fine for an amplifier ground. I ended up grounding to the roof of my trunk, after hitting it with a dremel to brush down to bare metal.