radio problem??
Could either be a wiring loom fault or a stereo fault. Normally peugeots after a certain reg have a stand buy mode where if you are listening to the stereo without the engine running and with just the ignition on it will turn the power off after 30 mins to conserve battery power.
You have to re-start the engine then to listen toit again. Try leaving it for 30 mins and see if this works. If not you are best off at a local garage or peugeot specialist to get it checked out. Dealer obviously most experienced but lot more expensive and may not be worth paying the extra money for the age of your car.
Hope this helps
tyger