Hi guys, today I replaced the front speakers and they work very well, but there are no speakers at the back, so I mounted 2 more speakers. Obviously they weren't present on my car, nor were the cables to mount them in the future. I ran 2 cables for both speakers, 2 on the left and 2 on the right, bringing all 4 wires to the radio, I didn't mount them, I was looking for an explanation on yt but nothing to help. Could you give me a hand? And can you also tell me the coding to follow? Thanks in advance

 

For coding change byte 04 in 5F unit to BE.