You can use your Bus Pirate to read a Fastrax UPS501 GPS module. Since the module has a UART, just connect the RX and TX pins, and set the Bus Pirate for UART mode. The correct settings are UART, 9600 baud, 8bits, no parity, one stop bit, receive polarity 1, and a normal output type.
Get your own Bus Pirate for less than $40.
Via the forum.
Make sure you also hook up VBATT, as it will continuously reset if it doesn’t have “battery power” I hooked both VDD and VBATT to 3.3V