hi everyone. i'm currently looking at my options regarding accessories for my car. i currently have a tamiya TT02 with a FlySky GT3B radio. currently i have a Yeah racing motor fan plugged into it but i would like to add more, currently i'm looking at a gyro and/or a speed monitor and possibly a set of lights if i find a body worth that kind of effort. my question is how can i attach all the accessories with my current set up or if i need to upgrade receivers or something. maybe there's a thing i can get to get more slots? any input is appreciated.

I would consider replacing the radio with a system that offers an integrated gyro built into the Rx. As far as budget radios go, I would recommend the Radiolink RC4GS, the gyro gain is controlled from the Tx:

Why a gyro? If you want to improve your car a gyro would be the last thing you need.

Regarding speed. I think a radio with telemetry options like several models from Spektrumrc would be your choice to read out speed and temperature.

I have used a gyro and it's a game changer with respect to improved handling, highly recommend it to enhance wide sweeping drifts!

Only thing to watch out for, do not apply too much "gain" or it can cause more harm than good, I have found that around 10-15% gain seemed to be the sweet spot for me.