Peugeot 307 (2001) How do I replace the lights behind the Air con in the centre console. Thanx?

Go to the dealer.

Hack out the old ones with an ax, replace with new.
Simple.

Often the dashboard pieces can be removed with a heavy wire, bent into a 90 degree angle. Peugeot stopped using screws on dashboard pieces about 1990.

Look for little holes that can take a toothpick. But use a heavy wire to push in. & pull towards you. THEN u will see some screws. Finally u will discover the lights which twist & pull out. The plastic base is usually part of the little lamp. Buy these special sizes at the dealer. Take the old one with you, AND the serial number of ur car, because these little things can change sizes in mid year.