My mazda titan sometimes is noise sound like tak tak under driver side what is it?

Sounds like your pressure plate is failing.

Titan talk is a great forum:
ac heater vent clicking noise Nissan Titan Forum

and a vid

take a visual look under the car if anything loose. Any lights coming on? ARE left and right signals ok- sometime they make clicking noise.

is it a clicking noise when ur turning a corner if so its your cv

You don't state what vehicle it is. If it is a front wheel drive, check the CV joint, although this would be more prone to making a noise whilst in a turn.

sometime under carpet on floor drivers side pass side or on drivers door near serial number why is this important to find if car was stolen or repair from a scrap car ?

The mechanism may be damaged. Most of the parts are plastic. look up under driver's side to view moving parts.

iblev its electronic so the tak-tak nois u hear is the actuator its stuck look under dash L side R s

it sounds like a c/v joint is worn .check under the left where the axel connects theres a rubber boot in the boot is the c/v joint if there is a little wear on the joint it will click click clik when u are driving and turning expecaly at low speeds.and if the boot is riped there will be greese all around the area

Sound like, either the universal couplings (they need to be lubricated every once in a while or they seize) or maybe the bearings.