RPM Transmissions

I dropped off my truck at RPM because my transmission wouldn't go into 1st or overdrive for the last year. The staff diagnosed that it was low voltage reaching the transmission. They replaced a valve on the back of the transmission and provided a higher voltage by running two wires directly to the exterior of the fuse box. I found this peculiar, but what can I say, it did work. My truck was quickly repaired within two days and cost $500. The staff was pleasant and prompt, but I understood knowing spanish might have helped us talk more about the repairs that were being done.