This may not be technical reason.
We sold around 6 cd players and 2 dvd players , 6 to 8 central lock and around 10 pair of speakers . plus a single parking system from xenos
out of 6, 5 came back , there cd skips.
one of the dvd player came in week saying the picture get struck and then play , square like thing comes in screen(screen was a korean made , not xenos)
Another one came just now (it was a sumo and its ac pipe has condenced and water had been leaking in the set.) though not a prob of xenos
out of 10 pair 1 came back that there is jarring sound . on inspection found the coils have burnt up.
and this reverse sensor man , comes often saying that the sensor doesn't beep many times . His car is indigo. i placed them at max outer position , but still no help. Works fine in shop , but once he go home he complains.
And other shop also stop selling xenos as they too get many complaint.
regarding there central lock , only one old 800 that installed here came back with a complaint and fortunately it was not a xenos complaint. His rusted old door had made a complaint.
This is my experiance with Xenos. we stopped selling that brand.