Dzihdz

Hello.

I've been trying to get my e60 sound better.

Originally I have basic stereo with 4 mids and 2 "sub" underseats and no amplifyer in car boot.

I Upgraded my mids with focal coaxical speakers.
Sound quality increased but was still missing lows.
I then added subwoofer in the trunk by tapping signal from underseat speaker.
Sound is much better from the beginning but I feel like I could get it better and squeeze more out of the focal speakers. Last piece in the puzzle seems to be amp for front speakers because I think headunits usually give about 15rms so giving front and underseat speakers 50w should give some good effect. I will leave rear speakers as is because they are high passed anyway.

​​​​​Unfortunatelly I am blessed with basic Audio System so I have to get my hands pretty dirty but I do not feel confident and want to avoid removing the head unit. I have googled that front speakers are wired parallel and am wondering If I can grab +- wire somewhere before headunit, take it to amp and bring new wire from amp to there and Alice to get signal from headunit and amplify speakers.
Does someone have any knowledge about this? I would appreciate it alot.

2004 530i

(I know there are many topics on audio upgrades and I've been reading them all, thats how I did current upgrades. But for door speaker amp tutorials, amp is in the trunk in every guide.
Only basic stereo e60 speaker upgrade blogs Are full overhaul with processors etc which is out of my skills,knowledge and budget)