Help for installing an inline coolant heater

I have seen lots of talk about putting in a coolant heater like the HTR8 by FrostHeater. I have a similar 750 watt 120 volt heater but I am looking for some help for the following. This is going in my 2006 Jetta 1.9 TDI BRM with DSG Automatic transmission.
1. inlet connection point and outlet connection point,
2. part numbers for hoses

Can somebody point me in any direction for help with this?

Just buy a FrostHeater.

Use the oil cooler hose going into the block (inlet). A Webasto would be much better and no electricity needed!