A new car radio!

I live in Holland, Europe

1: Volvo 760 GLE, 1982
2: 300$
3: Good sounding music
4: atm have 4x50 watt RMS Alpine boxes, 4 x 13cm in the front doors/back doors.
5: How much trunk space do you want to use up?
6: Gotta have USB/AUX
7: Rock/Trance
8: Is your stock stereo system amplified? (You may or may not know this) for me this is chinese
9: I'd love a NO-touchscreen. So i can control my audio while i drive without looking if i put my fingers on the right fcking place.

Thx in advance

trance ftw!!!

so you're looking for a subwoofer + new headunit? or just a headunit?

I use kenwood deck, it is pre-amped and has both usb and aux outputs.

i am not very knowledgeable on subs and amps, i would just say try and match them up.