F-150 Ground Problem / Location

[naiku 10+ year member]

Ok, so my noise problems are really pissing me off........... I did have an Aura RPM4200 amp, which had some noise, but only minor, so it was not so annoying. I have now upgraded this to an Alpine MRV-F345 and the noise is really annoying.

So far I have re-grounded my HU directly to the battery and wrapped my RCA's (Pioneer HU) but I still get a loud pop (from the sub) when changing source/settings/turning volume to 0 and get engine noise through all the speakers.

My amp is grounded to the rear seat bolt, I think that this is the main source of my noise. Is the seat bolt a good place to attach my amp ground? If so then I will try and scrape off more paint............ but, does anyone know of any better ground locations on a 2000 F-150? The amp is on the drivers side under the rear seat.

Should I try and ground my HU to the same location as the amp? or is it OK grounded to the battery?

Thanks.

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[azbass 5,000+ posts]

rear seat bolts are a bad spot.

also change your HU ground from the batt. and ground it with the amp. (in a better location thats solid bare metal. )

ford trucks, i usualy pull the carpet up. drill a hole through the floor. grind to bare metal around teh hole. then bolt the grown down.

 

[DDFrontier 10+ year member]

rear seat bolts are a bad spot.
also change your HU ground from the batt. and ground it with the amp. (in a better location thats solid bare metal. )

ford trucks, i usualy pull the carpet up. drill a hole through the floor. grind to bare metal around teh hole. then bolt the grown down.

What he said!

 

[audiobahnuser18 5,000+ posts]

x2

 

[questionaire 10+ year member]

My gound is on chassis with bare metal an still pops. I heard exact opposite though local shop told me to put it on seat bolt.........