New head Unit But No Sound. Help!!

[ollie_2020]

Hi all

I have just installed a new pioneer head unit in my mini one 2003 and it all powers up ok but i cannot get any sound out of any of the speakers. Ive read these forums and says about a blue wire but ive tried to connect this up and it still doesnt work!
Any help will be appreciated!

Thank you

[K33ROR]

if you have harmon kardon system you need an "HK enabler" but if you dont have harmon kardon im baffled.

[ollie_2020]

How would i know if i have this harmon kardon system or not??

[Caveman]

Check the front door speaker grill surround ...

There will also be an amp behind the right-rear trim panel of the boot ...