How much would it be to fix my phone's audio it cuts out unless I hold the back piece it's a Motorola generation 2

I don't believe the phone necessary needs new parts there's just loose wiring in the back that I don't know how to properly re connect without messing the phone up

Here at CPR Chico we hold quality to a high standard, with that we have a partnership with Motorola allowing us to buy genuine parts ensuring the highest quality repair. The cost to fix your device is 89.99 and we would have to order your part taking a couple days