Maybe get an impedance adapter AKA: line level converter. Run your soundbar speaker wires to it and then RCA's to an amp. Then from the amp to the rear speakers. it's an old school way of adding an amp but it will allow you keep the head unit stock.
2011 4Dr Unlimited... Rubi springs & shocks, Rubi tires, JKS QD's, CoverKing Seat covers, Rugged Ridge trail doors, A.C.E. stubby bumper, A.C.E. Rock Rails, A.C.E. Hi-lift jack mounts, Superwinch LP8500.
1983 CJ7 LAREDO, AMC 360, 5" lift, 33's
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