Coreshot

Hooking up a line out converter and was wondering if anyone had a wiring diagram for a 2013 glk WITHOUT a HK system or knows what colour wires are for the speakers to tap into. Thanks

ZZGlk

I have a 2013 without the HK upgrade. I looked up the diagram for rear speakers and it shows the left rear speaker (H4/3) as Pink and Brown/Pink. The right rear speaker (H4/4) shows White and Brown/White.

Hope that helps.

Coreshot

Awesome thank you sir!

Mmr1

Try first adjusting the EQ in the engineering mode , boost bass , cut mid , boost treble. I bypassed everything with an Audison 8.9 prima , new speakers and separate sub. I honestly couldn't get the stock system to sound decent.

Bill0004

Quick hit - how do you get into engineering mode? My CPO '14 GLK 250 arrives this weekend and I'm excited to start playing with it!

Mmr1

Press and hold the hang up, # and 1 together until you enter engineering mode