2019 A4 premium plus
#1
2019 A4 premium plus
so I have bought a brand new 2019 A4 premium plus quattro but i wanted to install a subwoofer and amplifier but what im scared off is this, do i have to dismantle the radio housing so i can fish and wire the RCA cable to the back of the OEM headunit of this vehicle? Is there really an RCA in the back of the OEM head unit at all? Please advise.
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