Uploading to an Arduino Uno via UM232R FTDI Module

I’m trying to upload files to my Arduino Uno via a UM232R USB - Serial UART (http://www.ftdichip.com/Support/Documents/DataSheets/Modules/DS_UM232R.pdf).

I have to do this because I have the uBlox MAX-7 GPS hooked up to ports 0 and 1 on the Arduino due to timing issues with software serial.

I have it all wired up correctly but I receive the following error when trying to upload blink: “avrdude: stk500_getsync(): not in sync: resp=0x00”

This is how the two boards are currently connected:
UM232R pin DB0 to pin 4 on the Arduino
UM232R pin DB1 to pin 5 on the Arduino
UM232R pin GND to GND on the Arduino

Should the RTS, VCC and RST be connected?

Have I missed anything else?

Have I missed anything else?

You sure are. The bootloader on the arduino can only send and receive upload data from pins 0 and 1 and as you have a gps wired to those pins you have a conflict.

So there's no way to upload from this new USB serial bypassing the original serial?

Nope