Clio rs 200 Gordini

Hi to all I'm wondering if anyone can help I removed the factory bosch radio to look what I would need to do to upgrade and now I've lose all controls at the side of the steering wheel I've checked all fuses and all good I've reset power by disconnecting battery and checked all connection at the back of the radio also the other fault is none of the buttons on the radio work other than manual tune and volume I suspect the radio is at fault as I did keep loosing one of the speakers not going off but volume very low all did work fine before I removed