Thanks for the replies. I was doing a little more research and came across this post - https://forum.rs246.com/viewtopic.php?f=2&t=102322 . It looks like my TCU chip is stock.

I was reading some of the forum history and saw a few posts about $100 TCU chips. Sounds too good to be true! Is it?

I was only able to find 034's TCU chip when searching online. Are there any other less expensive options? Looks like everyone else mentioned in the past has either discontinued or stopped advertising their offerings.