i need big helpppppp

[Bggd_GMC 10+ year member]

i have a tad small problem... my truck is equipped with air ride suspension and everytime i hit my switch it makes my subs do like a thump kinda noise even my mids/highs at high volume....a few friends told me its because my wires were crossing so i rewired it, switched amp ground from frame to batt, valves(suspension) ground from frame to batt, unplugged my RCA's from sub amp and still does the same thing... in this video i posted amps and valves are grounded at the battery and sub RCA's are unplugged... i did the Big 3 upgrade and used the stock ground point from engine and ran it to the frame and the battery is grounded at the frame (all 0awg wire)... my main battery has been relocated to behind my passenger seat... any clue?

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[maylar 10+ year member]

Air solenoids are inductive loads and generate a voltage spike when turning on & off (especially off). You should put a reversed diode across each solenoid to snub those transients.

 

[All_Logix 10+ year member]

:bowdown:finally someone one here who is aware of back emf