From a local source, I picked up another set of the factory wheels for very cheap. My plan is to put a summer-only tire on them and keep the stock wheels for winter. My question is, what will I need to obtain to keep the TPM system happy? How is the system setup, as far as a sender in the wheel? Would the receiver in the wheel wells read from a second set of senders on the summer wheels? If anyone has tried this or had any experience, I'd appreciate your input.