Is there customs issues to import original/oem accessories?

Yes it has but acceptable. We got some data here.
Year 2015: 22 packages(tracking) seized by customs from 1643 packages.
Year 2016: 27 packages(tracking) seized by customs from 1891 packages.
Year 2017-2019: 31 packages(tracking) seized by customs from 3452 packages.
The rate just 1.3%-1.5% and it is being more safe after 2016 packages.