Lc2 power lead wire lead

bigbadwolf2018 said:

Hi where do i wire this power lead into i have it hooked to a connector under seat is their a better place for it also get this loud thump thump when i turn on/off ignition is this from where the wire is hooked up
Also have this annoying radio static interference cant even listen to the radio been like that simce i biught the truck 3 yrs ago befor i did any mods to the truck ive replaced entire fender antenna no change all ground s are good not sure what else to replqce any help be much appreciated thanks

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bigbadwolf2018 said:

Hi where do i wire this power lead into i have it hooked to a connector under seat is their a better place for it also get this loud thump thump when i turn on/off ignition is this from where the wire is hooked up
Also have this annoying radio static interference cant even listen to the radio been like that simce i biught the truck 3 yrs ago befor i did any mods to the truck ive replaced entire fender antenna no change all ground s are good not sure what else to replqce any help be much appreciated thanks

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Atcer2018 said:

Do you have an aftermarket radio? Subwoofer with an external amp? The thump, thump you are hearing at startup and shut down are the amplifier capacitors powering up or shutting down. It looks like you are using a line output converter with a trigger wire for an external amp. Your head unit/radio will receive power before the LOC senses the trigger from the head unit. Once the LOC turns on the remote amp the capacitors power up and the thump is due to the delay in the external amp receiving power slightly after the head unit. Think of it as the radio is ready to play music but the external amp isn’t so the thump is it powering up. The reverse is true when turning off. The head unit loses power first, then the external amp and the thump is the power drain from the capacitors. If the thumps are really bad or make a popping sound it could be a bad capacitor in the external amp or a poor power feed to the amp. This is probably why you are asking about a power source for the LOC. A better switched power source would be in the interior fuse box under the kick panel. There are unused circuits of varying amps that can be tapped especially in an SLT with less fancy gizmos as standard equipment. As SitKneelBend pointed out there are components in a vehicle that cause interference. Another thing you can look into if the headlights/fogs aren’t causing the interference is the proximity from the speaker wires to power wires. Speaker wires that cross or run alongside power wires can pick up distortion. Also your aftermarket amp and any other amp needs a solid chassis ground to eliminate ground loop interference. I’d start with relocating that LOC to a power source in the fuse box and checking the grounds again especially any aftermarket amps and the LOC.

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bigbadwolf2018 said:

Yes its a after market amp amd subs and lc2 line loc has the 8.4 u connect radio upgrade from my little 5 " i dont see a fuse box under the dash kick panel only a body control module how do i post pics

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