Parking Brake Light

I have been having the same problem, I just bought a 93 ext cab 5.7l v8, this summer. The first time I put the parking break on it stayed on for almost a month. Everytime I start it and turn it off, there is a loud clicking noise that comes from the passenger side floor board, my mechanic friend and I think its the heater blend door trying to open, but I was wondering if anyone else has had the same issue. Also my odometer that you click( the trip) has never worked, but the actual odometer works. Two days ago my turn signals just quit working all together, but my hazard lights still work fine, I'm going too Autozone to buy the big black turn signal fuse to see if thats that the problem, My A/C has never worked but my heater works fine as too my knowledge. 1993 Extd. Cab Short Bed 5.7l V8 Flowmaster 17125 Force II Cat-Back 88-92 C/K 1500/2500 SPORT TECH Drilled & Slotted Rotors 2" Drop Spindles, Bell Tech #146-2500, ordered from Jegs JVC KD-AVX77 Headunit Alpine PDX-M6 Digital Amp Custom 12" Chevy C/K Extended 88-98 Cab Sub Enclosure New Shallow Mount Alpine SWR-T12 All Rockford Fosgate Wires All New Suspension, all of which is from RockAuto.com Raybestos Professional grade, Idler Arm, Pitman Arm, Ball Joints, Inner and Outter Tie Rods, Tie Rod Sleeves, maybe some others... New Bosch Water PUmp, Distributor Cap, Fuel Filter Brand New Windshield

Reach down a Manual pull the parking brake pedal up this should resolve the problem with the brake. How is the Idel? is it rough or intermittent? How are the headlights DIM or FULLPOWER?